2071321 has 4 divisors (see below), whose sum is σ = 2367232. Its totient is φ = 1775412.

The previous prime is 2071319. The next prime is 2071339. The reversal of 2071321 is 1231702.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2071321 - 2¹ = 2071319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2071295 and 2071304.

It is not an unprimeable number, because it can be changed into a prime (2071351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147945 + ... + 147958.

It is an arithmetic number, because the mean of its divisors is an integer number (591808).

2^2071321 is an apocalyptic number.

It is an amenable number.

2071321 is a deficient number, since it is larger than the sum of its proper divisors (295911).

2071321 is an equidigital number, since it uses as much as digits as its factorization.

2071321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295910.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2071321 is about 1439.2084630101. The cubic root of 2071321 is about 127.4722943773.

The spelling of 2071321 in words is "two million, seventy-one thousand, three hundred twenty-one".